substr adapters

to_substr() and to_csubstr() is used in generic code like format(), and allow adding construction of substrings from new types like containers. More...

Classes
struct	c4::is_string< T >
	a traits class to mark a type as a string type (meaning c4::to_csubstr() can be used directly). More...
struct	c4::is_writeable_string< T >
	a traits class to mark a type as a writeable string type (meaning c4::to_substr() can be used directly). More...
struct	c4::is_string< basic_substring< C > >
struct	c4::is_writeable_string< basic_substring< char > >
struct	c4::is_writeable_string< basic_substring< const char > >
struct	c4::is_string< const char * >
struct	c4::is_writeable_string< const char * >
struct	c4::is_string< char * >
struct	c4::is_writeable_string< char * >
struct	c4::is_string< const char(&)[N]>
struct	c4::is_writeable_string< const char(&)[N]>
struct	c4::is_string< char(&)[N]>
struct	c4::is_writeable_string< char(&)[N]>
struct	c4::is_string< const char[N]>
struct	c4::is_writeable_string< const char[N]>
struct	c4::is_string< char[N]>
struct	c4::is_writeable_string< char[N]>

Functions
substr	c4::to_substr (substr s) noexcept
	neutral version for use in generic code More...
csubstr	c4::to_csubstr (substr s) noexcept
	neutral version for use in generic code More...
csubstr	c4::to_csubstr (csubstr s) noexcept
	neutral version for use in generic code More...
template<size_t N>
substr	c4::to_substr (char(&s)[N]) noexcept
template<size_t N>
csubstr	c4::to_csubstr (const char(&s)[N]) noexcept
template<class U >
auto	c4::to_substr (U s) noexcept -> typename std::enable_if< std::is_same< U, char * >::value, substr >::type
template<class U >
auto	c4::to_csubstr (U s) noexcept -> typename std::enable_if< std::is_same< U, const char * >::value||std::is_same< U, char * >::value, csubstr >::type

Detailed Description

to_substr() and to_csubstr() is used in generic code like format(), and allow adding construction of substrings from new types like containers.

Function Documentation

to_substr() [1/3]

substr c4::to_substr ( substr  s )

inlinenoexcept

neutral version for use in generic code

Definition at line 2208 of file substr.hpp.

{ return s; }

to_csubstr() [1/4]

csubstr c4::to_csubstr ( substr  s )

inlinenoexcept

neutral version for use in generic code

Definition at line 2210 of file substr.hpp.

{ return csubstr{s.str, s.len}; }

to_csubstr() [2/4]

csubstr c4::to_csubstr ( csubstr  s )

inlinenoexcept

neutral version for use in generic code

Definition at line 2212 of file substr.hpp.

{ return s; }

to_substr() [2/3]

template<size_t N>

substr c4::to_substr ( char(&)  s[N] )

inlinenoexcept

Definition at line 2215 of file substr.hpp.

{
    return substr(s, N-1);
}

to_csubstr() [3/4]

template<size_t N>

csubstr c4::to_csubstr ( const char(&)  s[N] )

inlinenoexcept

Definition at line 2219 of file substr.hpp.

{
    return csubstr(s, N-1);
}

to_substr() [3/3]

template<class U >

auto c4::to_substr ( U  s ) -> typename std::enable_if<std::is_same<U, char*>::value, substr>::type

inlinenoexcept

Note

this overload uses SFINAE to prevent it from overriding the array overload

See also

For a more detailed explanation on why the plain overloads cannot coexist, see http://cplusplus.bordoon.com/specializeForCharacterArrays.html

Definition at line 2228 of file substr.hpp.

{
    return substr(s);
}

to_csubstr() [4/4]

template<class U >

auto c4::to_csubstr ( U  s ) -> typename std::enable_if<std::is_same<U, const char*>::value || std::is_same<U, char*>::value, csubstr>::type

inlinenoexcept

Note

this overload uses SFINAE to prevent it from overriding the array overload

See also

For a more detailed explanation on why the plain overloads cannot coexist, see http://cplusplus.bordoon.com/specializeForCharacterArrays.html

Definition at line 2236 of file substr.hpp.

{
    return csubstr(s);
}